ALEXANDRIA, Va., Sept. 17 -- United States Patent no. 12,415,928, issued on Sept. 16, was assigned to Sharp Display Technology Corp. (Kameyama, Japan).
"Anti-fog sheet structure and helmet" was invented by Kenichiro Nakamatsu (Kameyama, Japan), Mitsuaki Sugine (Kameyama, Japan), Hideya Hashii (Kameyama, Japan) and Tokio Taguchi (Kameyama, Japan).
According to the abstract* released by the U.S. Patent & Trademark Office: "An anti-fog sheet structure includes: a substrate made of polycarbonate, a first synthetic polymer film formed on a first main surface side of the substrate, and a second synthetic polymer film formed on a second main surface side, wherein the first synthetic polymer film has, on its surface, a plurality of first bumps ha...